Correlation between mechanical and surface properties of SLS parts
| Autor: | Ednan Joanni, Marcelo Fernandes de Oliveira, Raluca Savu, Jorge Vicente Lopes da Silva, Grazielle de Oliveira Setti, Izaque A. Maia |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Mechanical Engineering Nylon 12 Surface finish Industrial and Manufacturing Engineering Characterization (materials science) law.invention symbols.namesake Selective laser sintering chemistry.chemical_compound chemistry law symbols Laser power scaling Composite material Raman spectroscopy Raman scattering Tensile testing |
| Zdroj: | Rapid Prototyping Journal. 20:285-290 |
| ISSN: | 1355-2546 |
| DOI: | 10.1108/rpj-08-2012-0070 |
| Popis: | Purpose – The purpose of this paper is to compare the results from mechanical testing with measurements of surface-dependent properties performed on polyamide parts made by selective laser sintering (SLS) to assess a possible correlation between them. Design/methodology/approach – Fabrication of Nylon 12 (Duraform PA®) samples using different laser power levels and their characterization by tensile testing, roughness and Raman scattering measurements. Findings – Among the surface methods investigated, the results from Raman spectroscopy are the best ones, but methods dependent on surface analysis are not really suitable as indicators of the mechanical properties. The correlation coefficients for linear fitting obtained when the normalized results of mechanical properties are plotted against the surface properties are too low. Furthermore, the ambiguity between surface and mechanical data makes it impossible to use these surface properties for prediction purposes in the industrial environment. Originality/value – Quantitative evaluation and correlation between mechanical properties and surface properties of SLS-made samples. |
| Databáze: | OpenAIRE |
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